I like them and use them. Make sure they're good and tight, I did have one un-thread itself enough to leak and cause a little havic. I take two plyers and nudge the two halfs snug... and I don't have problems. Once every 3 or 4 years I take them apart, check and clean them.

I have a filter on my jug of fuel... and it's amaizing how some crud can still get to the plane. I found hair and dirt last year on one of my planes... so in my opinion, it doesn't hurt to have a fuel line filter in your plane. I have mine in between the glow tank and Kwick Fill. Another way is have it in your glow line between your glow tank and your High end needle.

http://i40.photobucket.com/albums/e2...IMAG0007-1.jpg